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    <title>Document</title>
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    <!-- 图片不显示的时候 atl显示 解决网络慢图片加载不出来 -->
    <img src="./caft.jpg" alt="这是一只猫">
    <img src="./dog.jpg" title="这是一只狗">
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    <img src="./cat.jpg" width="100">
    <img src="./dog.jpg" height="800">
    
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